Digital divide

Information communications technology (ICT) has been found to be one of the most potent tools for promot-
ing equity and access to education, and a great resource in bridging the gap of the digital divide. ICT affects
almost all of our everyday activities, be it business, defense, or space exploration. Being informed of the latest
information has become essential for survival. Educational enterprises also beneft from the advantages and
technological learning tools offered by ICT. ICT is indispensable for creating effective distance education learn-
ing environments.

Sensor used in this project is MOC 7811 from
Motorola. This is a slotted coupler/interrupter device.
In each revolution as the beam is interrupted,
the sensor generates a positive pulse. Microcontroller
will execute interrupt routine, When a pulse occurs.
Interrupt routine measures the total time taken for one
revolution, divides it by 120, and stores the result into another
timer,
Configured in auto-reload mode.
Now, the timer overflows after tiny intervals of time. Each time it
overflows, next stored value is called from the lookup table,
and displayed....

Signals can be divided into three categories ± continuous-time (analog) signals, discrete-time signals, and digital signals. The signals that we encounter daily are mostly analog signals. These signals are defined continuously in time, have an infinite range of amplitude values, and can be processed using electrical devices containing both active and passive circuit elements. Discrete-time signals are defined only at a particular set of time instances. Therefore they can be represented as a sequence of numbers that have a continuous range of values. ...

Th e DVD is a veritable treasure trove of supporting fi les for the projects in this book as well as a resource
for your own creative projects. Th e images and movies on the DVD are divided into their respective chapters
and can be accessed via Bridge (see Bridge page 53). Most of the images in the Foundation and Advanced
Skills modules of the book can be found on the DVD together with all of the images from the Imaging
Projects module. Th e movies are an invaluable resource, allowing you to start, stop and rewind so that
the skills can be quickly...

In this project, you first establish accurate proportions and outline the various shapes and forms
of an adorable young owl named Hooter; you then use graduated hatching techniques to
characterize the various textures and define the forms.
This project is divided into the following two sections:

Colour image processing is divided into two main areas: full colour and pseudo-colour processing. In the
former group, the images are normally acquired with a full colour sensor such as a CCTV camera. In the
second group, a colour is assigned to a specific monochrome intensity or combination of intensities.
People perceive colours that actually correspond to the nature of the light reflected from the object. The
electromagnetic spectrum of the chromatic light falls in the range of 400-700 nm.

Moderndigital technology has made it possible tomanipulatemultidimensional signalswithsystems
that range fromsimple digital circuits to advanced parallel computers. The goal of this manipulation
can be divided into three categories:
Image Processing image in!image out
Image Analysis image in!measurements out
Image Understanding image in!high-level description out

The detailed drawing of a bee in this project provides artists with an opportunity to enhance
various skills, such as drawing several different textures. Several tidbits of information about
bees are offered in sections titled “Bee Informed”.
Suggested drawing supplies include good quality white drawing paper, graphite pencils, kneaded
and vinyl erasers, and a pencil sharpener. This project is recommended for fine art educators and
artists from age 12 to adult with good drawing skills.
This project is divided into the following three sections:...

This project explores the process of drawing a caricature from
a photo, by utilizing a complex grid. The average drawing time
on this type of project generally runs between 20 to 40 hours.
To give you an idea of the time I spent on each aspect, I
included a brief drawing journal.
This lesson is divided into the following six sections:
SKETCHING WITH HELP FROM A GRID: You lightly sketch the outline of the subject
by utilizing a complex grid to establish the placements of various components....

Introduction to Real-Time Digital Signal Processing
Signals can be divided into three categories ± continuous-time (analog) signals, discrete-time signals, and digital signals. The signals that we encounter daily are mostly analog signals. These signals are defined continuously in time, have an infinite range of amplitude values, and can be processed using electrical devices containing both active and passive circuit elements. Discrete-time signals are defined only at a particular set of time instances.

A basic knowledge of the physical aging processes allows you to accurately draw people of
various ages. The age regression and progression techniques, discussed in this heavily illustrated
article, can be invaluable for accurately portraying or modifying the ages of portrait subjects.
This article is divided into the following four major sections: FROM NEWBORN TO TODDLER: During the first two years of life, a human face
changes more drastically than at any other stage of development.

Meet Isaac – a Jack Russell Terrier and proud
owner of my friend Rob! In this project, you
first set up Isaac’s facial proportions and
render a contour drawing. Then, you add
texture to his fuzzy face with hatching, and
shading to his nose with squirkling.
This project is divided into the following six sections:
SKETCHING PROPER PROPORTIONS: With a simple grid as a helpful guideline, you
draw the various components of Isaac’s face, ears, and neck.

T
Preface
his report and a companion website (www.nae.edu/
techlit) are the final products of a two-year study by the
Committee on Technological Literacy, a group of experts
on diverse subjects under the auspices of the National Academy of
Engineering (NAE) and the Center for Education, part of the National
Research Council (NRC). The committee’s charge was to begin to
develop among relevant communities a common understanding of what
technological literacy is, how important it is to the nation, and how it can
be achieved.

In the not too distant future, the Web will be everywhere in the world. By the year 2003, the explosion of
Web−enabled electronic business (e−Business) will be worth more than US $1 trillion and the Web users will
be more than 600 million. This is offering organizations previously unheard of opportunities. To be successful
or survive, industry leaders have made strategies towards e−Business, and others, sooner or later, more or less,
will have to become certain kinds of e−Business.

Normally the frequency divider designed by Boole algebra and to design a frequency divider with any divide factor, we have to repeat all over again every design step as the same. So to avoid of wasting time and money, instead of using traditional Boole algebra in digital technical we replace it by mathematical models in high algebra. And because of that we can design frequency dividers use computer. 1. Modeling of function circuit

The Internet is a critically important research site for sociologists testing
theories of technology diffusion and media effects, particularly because it is a
medium uniquely capable of integrating modes of communication and forms of content.
Current research tends to focus on the Internet’s implications in five domains:
1) inequality (the “digital divide”); 2) community and social capital; 3) political participation;
4) organizations and other economic institutions; and 5) cultural participation
and cultural diversity.

Does the community prefer one news medium over another? Cultural groups do have media
preferences: some studies show, for example, that African Americans tend to get much of their
news and health information from television or radio, rather than print.
Be aware, too, of the digital divide in planning for outreach methods. While computers seem
pervasive in American culture, studies show that some communities are not as likely to rely on
computerized media sources.

(BQ) In this age of universal electronic connectivity, viruses and hackers, electronic eavesdropping, and electronic fraud, security is paramount. This text provides a practical survey of both the principles and practice of cryptography and network security. The book is divided into 2 parts, part 2 from chapter 16 to chapter 23.

Modern digital technology has made it possible to manipulate multi-dimensional
signals with systems that range from simple digital circuits to advanced parallel
computers. The goal of this manipulation can be divided into three categories...